Rope-guide for dumb-waiter ropes.



L. WIEBKE.

ROPE GUIDE FOR DUMB WAITER ROPES.

APPLICATION FILED MAR. 23, I915.

1,152,775 PatentedSept. 7,1915.

WITNESSES. IN I/E IV 70/? LOUIS WIEBKE, OF NEW YORK, N. Y.

ROPE-GUIDE FOR DUMB-WAITER ROPES.

Specification of Letters Patent.

Patented Sept. '7', 1915.

Application filed March 23, 1915. Serial No. 16,353.

To all whom it may concern:

Be it known that I, LOUIS Wrnnnn, a citizen of the United States ofAmerica, residing at the borough of Bronx, city of New York, county ofBronx, and State of New York, have invented certain new and usefullmprovements in Rope- Guides for Dumb- Waiter Ropes, of which thefollowing is a specification, reference being had to the accompanyingdrawings.

This invention relates to improvements in ropeguides and particularly toimprovements in rope-guides for the rope by means of which a dumb-waiteris controlled in raising and lowering the same; and one object of theinvention is to reduce to a minimum the friction encountered by thedumb-waiter rope and thereby to prevent the chafing of the latter and toprolong the life thereof.

Another object of this invention is to provide a rope-guide of thecharacter referred to which will permit the ready insertion of the ropetherein without the necessity of re moving the guide-pulley therefrom.

A third object of this invention is to provide a rope-guide of the typehereinbefore mentioned which will be simple in construction,comparatively cheap in manufacture and efficient and durable inoperation and use and susceptible of being readily put in place andspeedily repaired.

In the drawings illustrating the principle of this invention and thebest mode now known to me of applying that principle, Figure 1 is avertical sectional view of so much of a dumb-waiter shaft as isnecessary to illustrate the application of this invention thereto; Fig.2 is an elevation, partly in section, and Fig; 3 is a plan of one formof rope-guide made according to this invention; and Fig. t is anelevation, partly in section, and Fig. 5 is a plan of another form of mynew rope-guide, in which the pivot pin is inclined to the base plate.

The frame or housing of the rope-guide consists essentially of twoplates (2, b,lone of which (marked a) will be hereinafter designated asthe baseplate and the other (marked 5) of which will be called thesupportingplate. These two plates a, b, are hingedly connected at 0. Thesupportingplate 6 is approximately U-shaped and from one of its arms clthere extends outwardly a pair of ears 6 formed with screw-holes f. Thebase-plate a is L-shaped and is formed with screwholes 7" which arearranged to formed with a head it and is held in place by a split key(or cotter pin) It; and by removing the latter, the pin it may bereadily slipped out of the holes formed in the ear 9 and the side I). r

A hole a is formed in the base-plate a for the reception of the head hof the pin it.

I A rope-guiding member, such as a grooved pulley 2' is rotatablymounted on the pin it. By passing screws f" through the screwholes f, f,the rope-guide is fastened to the upper end of the side wall 7' of theopening that leads into the dumb-waiter shaft m in which travels up anddown the dumbwaiter a controlled by the rope 0. The end of the ropeguideframe provided with the hinge 0 projects inwardly into the dumbwaitershaft and the rope 0 lies between the hinge 0 and the pulley 2'. Due tothe improved construction of this rope-guide, it is wholly unnecessaryto remove the pulley 2' in order to pass the rope 0 through therope-guide; for, all that is necessary is, before fastening therope-guide in place, to swing apart the plates a, b on the hinge 0,whereby suflicient room is obtained through which to pass the rope 0(see dotted lines in Fig. 3); and, after the rope has been thus insertedin the rope-guide, the plates a, b, are closed together again and theropeguide is then screwed in position, as shown in Fig. 1.

In the form illustrated in Figs. 4: and 5, the walls 79, g, of thesupportingplate I)" lie inclined to the base-plate a; and, therefore,the pin it is likewise inclined to the base-plate a. This form ofrope-guide is used where the rope 0 passes into the rope guide at anangle.

By the use of the rope-guide hereinbefore described, there is avoidedthe chafing of the rope against the sharp edge of the frame of theopening is so that the life of the rope is prolonged. By removing thepin 71., the pulley 2' may be readily removed and re placed'g'and thedevice may be readily repaired, when any of its parts wear out. And byreason of the hinged construction of the rope-guide, it is the work ofonly a few seconds to pass the rope therethrough. In accordance with theprovisions of the patent statutes, I have described the principle ofoperation of my invention, together with the apparatus which I nowconsider to represent the best embodiment thereof; but I desire tohaveit understood that the apparatus shown is only representative andthatthe invention can. be carried out by other means. i I claim:

1. A rope-guide for a dumb-waiter rope, comprising a rope-guidingmember; a pivotpin therefor; a supporting-plate which supports the endsof said pivot-pin; and a base plate one end of which lies on one side ofsaid pivot-pin and the other end of which extends to the other side ofand beyond said pivot-pin and is hingedly fastened to thesupporting-plate on the guiding side of said rope-guiding member; thefirst-named end of said base-plate being arranged to be fastened to awall of the opening that leads into the dumb-waiter shaft.

2. A rope-guide for a dumb-waiter rope, comprising a rope-guidingmember; a pivotpin therefor; a supporting-plate which supports the endsof said pivot-pin; and a baseplate one end of which lies on one side ofsaid pivot-pin and the other end of which extends to the other side ofand beyond said pivot-pin and is hingedly fastened to thesupporting-plate on the guiding side of said rope-guiding member; thefirst-named end of said base-plate being arranged to be fastened to awall of the opening that leads into the dumb-waiter shaft; and the axisof said pivot-pin being inclined to said baseplate. a

In testimony whereof I have hereunto set my hand, at the borough ofManhattan, city, county, and State of New York, this twentysecond day ofMarch, A. D. 1915, in the presence of the two undersigned witnesses.

LOUIS WIEBKE. Witnesses:

JAMES HAMILTON, M. E. WOARDELL.

G'opies of this patent may be obtained for five cents each, byaddressing the Commissioner of Patents,

' Washington, I). C.

